Six nine along the river to see the willow, seven nine river open!
This is already seven or nine, I thought the weather was getting warmer, but the weather was like a child's face, saying that it would change.
The Central Meteorological Observatory issued a blue warning for blizzard: heavy snow is expected from February 12 to 13 in parts of the Ili River Valley in Xinjiang, northern Shanxi, central Hebei, southern Tianjin and other places, as well as in high-altitude areas in northeastern Yunnan, northern Guizhou, and northwestern Hunan.
Friends in snowy areas must pay attention to travel safety, these days the Winter Olympics are being held, we must play ice and snow projects, but also pay attention to safety, to avoid falls, sprains, and even fractures.
In fact, when it snows heavily, not only is orthopedics the busiest, because it is overcrowded; even patients in cardiology will increase, because the risk of diseases such as heavy snowfall, cold weather, heart disease and myocardial infarction will increase significantly. Therefore, there are three high risks, friends with cardiovascular disease, and the elderly must do a good job of prevention to avoid heart attack.
The risk of cardiovascular disease and myocardial infarction in winter is 5 times higher than in summer:
The increased risk of cardiovascular disease and myocardial infarction in winter is actually due to cold stimulation. After the temperature drops, our blood vessels will also be relatively constricted, and after the blood vessels contract, they are more likely to cause cardiovascular stenosis, causing myocardial ischemia, which in turn induces cardiovascular disease or myocardial infarction.
There are also more respiratory diseases in winter, and patients with underlying heart disease, once infected, or after lung infection, will induce heart failure and increase the risk of cardiovascular disease.
Cold stimulation can also induce vasospasm, which can lead to angina or myocardial infarction.
Studies have shown that as temperatures drop, coronary heart disease mortality rates rise. For every 1 degree Celsius drop in temperature, the number of deaths increases by 0.5 percent.
From 2007 to 2013, the research team compiled the cardiovascular incidence and myocardial infarction deaths in nine cities, including Beijing, Tianjin, Shanghai, Nanjing, Hefei, Wuhan, Chengdu, Hangzhou and Guangzhou, as well as related temperature change data.
The results showed that in winter, the temperature-related attribution score was 42% in myocardial infarction death and 35% in cardiovascular death, and in summer, the former was 13% and the latter was 8%.
That is to say, the temperature drops in winter, which is more likely to induce cardiovascular disease and myocardial infarction, and the risk of cardiovascular disease or myocardial infarction in winter is 5 times that of summer.
Second, in winter, intravascular plaques are more likely to rupture and form blood clots:
Everyone may have a discovery, that is, winter blood pressure is higher than summer, and even sensitive people, winter is high blood pressure, summer blood pressure will return to normal.
Studies have shown that elevated blood pressure in winter can lead to a 21% increase in the risk of coronary heart disease. Therefore, the incidence of acute myocardial infarction in winter is higher than in summer, and one of the main reasons is that blood pressure is too high in winter.
In addition to the cause of blood pressure, another reason is that plaques are more likely to rupture. After the temperature drops, our body temperature will also be relatively reduced, the lower the body temperature, the easier it is to trigger cholesterol crystallization, and cholesterol crystals are generally located on the surface of the criminal plaque, which is easy to cause the plaque to rupture.
We know that the essence of acute myocardial infarction is actually the rupture of unstable plaques in the heart vessels, and after the plaque ruptures, blood clots will form, and blood clots will block blood vessels, thus triggering myocardial infarction and even leading to sudden death.
Therefore, the temperature drops in winter, blood pressure is higher than in summer, plaque is more likely to rupture than usual, and it is easy to form blood clots.
Third, snowplowing also increases risk
The incidence of cardiovascular disease and myocardial infarction is not only related to the decline in winter temperature, but also to heavy snowfall.
The American Heart Association study found that in a cold environment, clearing snow outdoors will raise blood pressure, cause coronary arteries to contract, overwork, move too fast, and trigger a heart attack. When the snow is cleared outdoors, the workload of the heart will increase, which is equivalent to the upper limit that a sedentary man can achieve in an extreme stress test.
Then for people with a potential risk of cardiovascular disease, sudden strenuous exercise will naturally increase the risk of myocardial infarction. Studies have found that the snowier Canada, the more people have heart attacks, which is related to the fact that many people clear the snow.
Therefore, on snowy days, those who have high risk factors for cardiovascular disease (high blood pressure, diabetes, hyperlipidemia, smoking, obesity, clear family history, etc.), or people who usually never exercise (like to sit, obesity, etc.), these people should not be so diligent to clear the snow, so as not to induce heart disease.
Although spring is in full swing, it is still very cold in many areas, especially with the forecast of medium snow and heavy snow, we must do a good job of keeping warm, monitoring blood pressure, prevention is still the best treatment!